My current research is focus in developing the concept of FAST-DB and is sponsored by Rolls-Royce.
Many aerospace components are exposed to extreme service stress states and temperatures, which in some applications could compromise the component’s performance if a single titanium alloy is used. A potential solution to this issue could be the combination of dissimilar titanium alloys in subcomponent regions, achieved through consolidating powders via field assisted sintering technology (FASTDB) and subsequent hot forging (FAST-forge).
Spark plasma sintering (SPS) or also known as field assisted sintering technology (FAST), uses electrical current and mechanical pressure to obtain a fully dense solid from powder. The dissimilar titanium powder alloys can be layered on top of each other to obtain a fully dense solid with two different alloys.
The aim of the research is to understand the mechanical properties and failure mechanism of the bond through a range of mechanical tests. Furthermore, this project will look at the effect in the diffusion bond after close die forge a FAST-DB material. The main alloys studied in this research are Ti-6Al-4V and Ti-6Al-242.